Sin(-45)градус × tq пи/3плюс cos(-45)градус.×сtg пи/6

Question

Sin(-45)градус × tq пи/3плюс cos(-45)градус.×сtg пи/6

Answer 1

Sin(-45°) * tg(π/3) + cos(-45°) * ctg(π/6) = -√2/2 * √3 + √2/2 * √3 = 0